Removable Extension Plates for Feed Assist Roll Crop Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Agricultural harvesting machines, such as balers, face challenges in handling both normal and high throughput crop volumes due to blockages in front of the pickup unit, especially with large volume windrows of low density crops.
Innovation Solution
A pickup unit design featuring a feed assist roll with radially extending cleats and removably attached T-shaped extension plates that can be easily added or removed to enhance crop handling, preventing blockages and acting as an additional packer for high volume crops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a feed assist roll with cleats is used to move heavy crop material, then the ability to handle heavy crop material is improved, but blockages still occur with large volume windrows
Solution Approach 1:
The feed assist roll allows dynamic adjustment of cleat height through removable extension plates. Operators can add extension plates to increase cleat height when handling large volume windrows, and remove them for normal operation. This dynamic adaptability resolves the contradiction by allowing the system to optimize its performance for different crop conditions.
Solution Approach 2:
The extension plates change the physical parameter of cleat height on the feed assist roll. By adjusting this parameter, the system can effectively handle both heavy crop material (with extension plates providing additional height for better engagement) and large volume windrows (with increased height preventing blockages).
2Productivity
If the feed assist roll is designed for normal throughput, then it handles most operating conditions well, but it cannot handle high throughput of large volume crops
Solution Approach 1:
The feed assist roll is segmented into a base structure with fixed cleats and removable extension plates. This segmentation allows the system to maintain its normal throughput capability while adding the ability to handle high volume crops by attaching extension plates when needed. The modular design enables adaptability without compromising normal operation.
Solution Approach 2:
The system transitions from a static feed assist roll design to a dynamic one where extension plates can be added or removed based on operating conditions. This dynamic capability allows the feed assist roll to adapt between normal throughput mode and high volume crop handling mode, resolving the contradiction between specialized performance and versatility.
3Adaptability or versatility
If extension plates are removably attached to cleats, then the pickup unit can be configured for different operating conditions, but the device complexity increases
Solution Approach 1:
The extension plates are designed as separate, modular components that attach to the existing cleat structure. This segmentation allows for easy addition or removal without requiring complex integration mechanisms. The simplicity of the modular design minimizes the increase in device complexity while maximizing adaptability.
Solution Approach 2:
The extension plates serve multiple functions: they increase cleat height for better crop engagement, prevent blockages by extending the effective working height, and can be quickly added or removed to adapt to different crop conditions. This multi-functionality justifies the added components by providing versatile capability enhancement.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A pickup unit (40) for an agricultural harvesting machine includes a frame (41); a pickup roll (42) carried by the frame; and a feed assist roll (48) carried by the frame and positioned adjacent to the pickup roll. The feed assist roll has a plurality of radially outwardly extending cleats (54) spaced apart around a periphery thereof, and a plurality of extension plates (56, 70, 80). Each extension plate is removably attached to and extends a corresponding cleat.